Price Projections for Selected Grades of Douglas-Fir, Coast Hem-Fir, Inland Hem-Fir, and Ponderosa Pine Lumber. Research Paper PNW-RP-447
Haynes Richard W.
Fight Roger D.
Portland : U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station , 1992. - 20 s.: 5 obr., 16 tab.
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